Thus, the error-strings are not very relevant. The function 1= is void. Instead of being called “error” messages, they should be called “help” messages. In such cases, you will see only one line of error message; it will appear in the echo area and look like this: Symbol's function definition is void: this The message

In this experiment with the +, what we did was cause the Lisp interpreter to evaluate the + and look for the value of the variable instead of the function definition. The word ‘function’ was mentioned once before. For example, all the errors in accessing files have the condition file-error. See Writing to Files.

Owner bbatsov commented Apr 29, 2013 This code doesn't exist anymore, but I guess you might have some elc files referring to it. beginning-of-buffer The message is ‘Beginning of buffer’. Under the optional lexical scoping rule, the value cell only holds the variable’s global value—the value outside of any lexical binding construct. Function: makunbound symbol This function empties out the value cell of symbol, making the variable void.

For our purposes, we can define it by saying that a function is a set of instructions to the computer that tell the computer to do something. total)) If you are reading this in Info, you can evaluate this definition in the normal fashion. Emacs made an interactive call to C-x C-e (eval-last-sexp), which led to the evaluation of the triangle-bugged expression. If a variable is void, trying to evaluate the variable signals a void-variable error, instead of returning a value.

The word ‘function’ refers to the instructions that tell the computer what to do. (Technically, the symbol tells the computer where to find the instructions, but this is a complication we Next: debug-on-entry, Up: Debugging [Contents][Index] Next: Closures, Previous: Generic Functions, Up: Functions [Contents][Index] 12.9 Accessing Function Cell Contents The function definition of a symbol is the object stored in See Constant Variables. You signed in with another tab or window.

invalid-read-syntax The message is ‘Invalid read syntax’. See How Programs Do Loading. What is the difference between SAN and SNI SSL certificates? If fill-column were the first or only element of a list, the Lisp interpreter would attempt to find the function definition attached to it.

This happens when trying to access an element beyond the range of a sequence, buffer, or other container-like object. See Function Indirection. Does Zootopia have an intentional Breaking Bad reference? The buffer is called the *Backtrace* buffer because it enables you to track Emacs backwards.

Since + does not have a value bound to it, just the function definition, the error message reported that the symbol’s value as a variable was void. Note that an unassigned value cell is not the same as having nil in the value cell. Next: Names & Definitions, Previous: Run a Program, Up: List Processing [Contents][Index] Next: debug-on-entry, Up: Debugging [Contents][Index] 17.1 debug Suppose you have written a function definition that is intended void-function The message is ‘Symbol's function definition is void’.

Just delete all the .elc or is there a simple way to recompile them all? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Next: Void Variable, Previous: fill-column Example, Up: Variables [Contents][Index] 1.7.1 Error Message for a Symbol Without a Function When we evaluated fill-column to find its value as a variable, we To distinguish between a function cell that is void and one set to nil, use fboundp (see below). (defun bar (n) (+ n 2)) (symbol-function 'bar) ⇒ (lambda (n) (+ n

It's not after the first 'if' though, as that's supposed to be and 'if-else'. For example, the file userlock.el defines the file-locked and file-supersession errors. share|improve this answer answered Oct 12 '13 at 16:56 abo-abo 13.6k11631 1 That's it. It does not check that the returned object is a legitimate function.

We will enter the debugger. See Color Names. arith-error The message is ‘Arithmetic error’. Now we can begin to understand the error message: ‘void-function this’.

Was any city/town/place named "Washington" prior to 1790? scan-error The message is ‘Scan error’. The symbol nil is a Lisp object and can be the value of a variable, just as any other object can be; but it is still a value. I suspect some dependency error, have tried a lot of things to fix it, but I don't have the skills to understand where things go wrong : here my init.el ---

Next: Standard Keymaps, Previous: GNU Emacs Internals, Up: Top [Contents][Index] Previous: Void Function, Up: Variables [Contents][Index] 1.7.2 Error Message for a Symbol Without a Value If you attempt to If I am fat and unattractive, is it better to opt for a phone interview over a Skype interview?

Browse other questions tagged emacs elisp or ask your own question. Not the answer you're looking for? Standard way for novice to prevent small round plug from rolling away while soldering wires to it Let's do the Wave! Afterwards, the previously shadowed local or global binding is reexposed; then the variable will no longer be void, unless the reexposed binding is void too. share|improve this answer answered Nov 3 '12 at 23:42 tlehman 2,82511536 add a comment| Your Answer draft saved...

Try upgrading Emacs. Enable the elm layer in the .spacemacs file Restart Spacemacs Open a file with a .elm extension. Thanks. –Cheeso Nov 15 '10 at 20:06 add a comment| 2 Answers 2 active oldest votes up vote 18 down vote accepted Use M-x toggle-debug-on-error RET to drop into the debugger Related 11A 'hello world' example for a major mode in Emacs?2Turning on auto-fill mode as a minor mode when I run emacs6Emacs - how do I automatically enter minor modes when We recommend upgrad...

ESS supports current, and recent, stable versions of GNU Emacs (currently, specifically, the 24.x series; alpha/beta/pre-release versions are NOT SUPPORTED). To make this work, you need to end every PROC and DATA step with a "RUN;" statement. In this case, Emacs tries to invoke nil as a function. In /@w 5, remove incorrect ‘wait‘ argument from /@w 4 call. Eldoc and auto-completion integration are using this system. If current process is busy, or current buffer is not associ...

Why can a system of linear equations be represented as a linear combination of vectors? Links Planet Emacs Meta Register Log in Entries RSS Comments RSS WordPress.com Create a free website or blog at WordPress.com. See Catch and Throw. • Signaling Errors:How to report an error. • Processing of Errors:What Emacs does when you report an error. • Handling Errors:How you can trap errors and continue See Evaluating Emacs-Lisp Expressions in The GNU Emacs Manual. Edit: I faile...